Home / 10,871.52-15,003.44-6,155.80

Finding the Fourth Proportional to 10,871.52, 15,003.44 and 6,155.80

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Solution

The fourth proportional to 10,871.52, 15,003.44 and 6,155.80 is: 8,495.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.52 : 15,003.44 = 6,155.80 : x
  2. Step 2: Convert to fraction form
    10,871.52/15,003.44 = 6,155.80/x
  3. Step 3: Cross multiply
    10,871.52x = 15,003.44 × 6,155.80
  4. Step 4: Simplify right side
    10,871.52x = 92,358,175.95
  5. Step 5: Solve for x
    x = 92,358,175.95/10,871.52
  6. Step 6: Final answer
    x = 8,495.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.